Air chuck



FIG. 1 is a front, top, and right side perspective view of an air chuck;

FIG. 2 is a rear, top, and left side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a rear elevational view thereof; and,

FIG. 9 is a cross-sectional view of line 9-9 from FIG. 3.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for an air chuck, as shown and described. 